James ball



(No Model.)

J. BALL. MAUHI-N'E FOR MANUFACTURING BNVBLOPS.

No. 577,098. Patented Feb. 16, 1 897.

UN TED STATES PATENT OF ICE.

JAMES BALL, OF HYDE, ENGLAND.

MACHINE FOR MANUFACTURING, ENVELOPS.

SPECIFICATION forming part of Letters Patent No. 577,098, dated February 16, 1897. Application filed April 24, 1896. Serial No. 588,849. (No model.) Patented in England, July 25, 1894, No. 14,286.

for; and the invention consists in the peculiar construction and arrangement of said gumming devices, all as hereinafter fully described and more particularly pointed outin the claims.

The invention described in this application has been patented by me in England, dated July 25,180l,which patent is numbered 14,286.

In the drawings forming part of this specification, Figure 1 is a front view, and Fig. 2 a plan, of the gumming device of a machine for the manufacture of envelops constructed in accordance with myinvention. Figs. 3, at, 5, and 6 are side views of Fig. 1, showing the gummers in various positions. Fig. 7 is a vertical section, Fig. 8a plan, and Fig. 9 a side View, of an envelop-pile guide-post constructed in accordance with my invention.

In the drawings, a indicates fixed portions of the frame of the machine, and b the table on a part of said frame, upon which are placed the envelop-blanks e. A vertical spindle g i is supported in a part (6 of the said frame, and

in practice said spindle is suitably connected with operative mechanism of the machine, whereby vertically-reciprocating movements are imparted thereto, as is usual in the part of envelop-machines which carries and actuates directly the gummers thereof. A bar 9 is rigidly fixed near its central portion to the lower end of said spindle g and extends in cross-form thereon, as shown. Said bar 9 extends above and over the pile of envelopblanks e in convenient position to provide for attaching the below-described gum mersone for the lower and one for the sealing flap of the envelop thereto, whereby, through said vertical movements of said spindle g, the gummers shall be applied to and serve to lift the top blank of said pile in the usual manner, The lower flap-gummer d is securely clamped directly to one end of said bar g, as

shown. A collar 3 is carried 011 said bar 9 and is there secured by a screw 4:. .(See Fig. 2.) A bifurcated lever 7L is pivotally connected to said collar 3 by trunnion-bolts passing through the arms thereof into the opposite sides of said collar, as shown. The outer end of said lever h extends over the adjoining end of said bar 9 and is suitably grooved on its under side to permit it to swing vertically thereover from the position shown in Fig. 3 to that shown in Fig. 5, and vice versa. To the under side of said lever h, near its said swinging extremity, the sealing-flap gummer c is'seoured, as shown. Said spindle g has an arm a secured thereon, which serves as a support for the upper end of a vertical spindle It, and on said spindle is a spiral spring 1 the upper end of which abuts against the under side of said arm a. The lower end of said spring 1; is provided with an abutment consisting of the collar k, which is adjustable on spindle 7a, to the end that the action of said spring to move said spindle is downward may be varying in force, or one capable of such adjustment as will permit the gummer c to swing upwardly and outwardly after striking the blank to be gummed thereby during the positive movement of the gummer d against the said blank, fora purpose below described. Said spindle is has its lower end extending through a block 5, which is secured thereto and which lies upon the upper side of said lever it, said lower end of spindle 7c entering loosely into a perforation in said lever 72..

A pivoted latch-lever m is attached scribed, is adapted to engage and release said catch-piece Z. A spring m has one end con nectcd to said leverm and one end connected to said verticalfixed frame part a. The operation of the above-described gummer devices is as follows: From the foregoing description it will be noted that the movement of said lower flap-gummer d against the pile of envelopblanks and striking the flap of the upper one is positive, and the downward movement of said gummer 01 serves to produce more or less of a blank-defiectin g pressure upon said pile, whereby the opposite gummer is caused, as

A catch-piece Z is secured on the side of said block 5. to the end of said bar g, which, as below deaforesaid, to swing upward in more or less of forth. Thus the degree of pressure of said gummer cl against said pile e is greater than that exerted again st the seal-flap of the blank by the gummer c by the action of said spring 71 through said spindle It, which action is only to effect a light contact of gummer c with the blank. Therefore the end of the lever 7L, on which said gummer c is carried, after being lightly carried against said seal-flap is caused to swing upward in more or less of the arc of a circle, as in Fig. 5, until said catchpiece Z becomes automatically engaged with said spring-actuated catch-leverm. The said swinging movement of the gummer 0 against and off from said flap results in a degree of abrasive movement of the gummer toward the border of said flap as the gummer is about to be separated therefrom, and thereby a better disposition of gum 011 the seal-flap is effected. Consequent upon a succeeding upward movement of the spindle g and the gummcrs c an d d the spring m is brought to a horizontal position, as in Fig. 6, thereby disconnectin g the lever m from said catch-piece 6 preparatory to bringing both gummcrs again to a position to receive gum from a suitable gummin g-roller.

In lieu of forming the guide-posts f in one piece Iform the upper end thereof with a cireularly-adjustable socket f (see Figs. 7, 8, and 9) and with a separator-pin f adapted to rest loosely on the envelop-blank a, being carried by a blockf adapted to slide in the circularly-adjustable post-socket f. However, in lieu of using a plain separator-pin f I form the same with a thread, so as to be readily adj u stable in its block f 3 horizontally. It will thus be seen that the post-socketf, which receives the block f can be readily adjusted circularly in the post f by means of the screw f and that the blanks will be held in position by the Weight of the separator-pin f and block f only.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is

1. In an envelop machine, gummer-supportin devices comprisinga vertical gummer supporting and actuating spindle, and a bar fixed to said spindle and extending horizontally over the blank-table of the machine, combined with two gummcrs carried on said bar, and means connecting said gummerswith said bar, whereby upon the descent of said gum mers against a pile of envelop-blanks held on the machine, the contact pressure of said gummcrs is unequal, and one thereof has an upwardly swinging movement induced by said contact and by the defiectin g pressure of the opposite gummer upon said blanks, substantially as set forth.

2. In an envelop-machine, gummer-supporting devices comprising a Vertical gummer supporting and actuating spindle, and a bar fixed to said spindle and extending horizontally over the blank-table of the machine, combined with two gummcrs carried on said bar, means whereby upon the descent of said gummcrs against a pile of envelop-blanks held on said table, the contact pressure of said gummcrs is unequal, and one thereof has an upwardly-swinging movement induced by said contact and by the deflecting pressure of the opposite gummer upon said blanks, and means for engaging said upwardly-swinging gummer and temporarily retaining the same, substantially as set forth.

3. In an envelop-machine, gummer-supporting devices comprising a vertical gummer-supporting spindle, and a bar fixed to said spindle and extending horizontally over the blank-table of the machine, combined with a gummer secured on one end of said bar, a lever pivotally attached to said bar for vertical vibratory movements, a second gummer secured on the free end of said vibratory 1cver, and a spring controlling the pressure of said second gummer against an envelopblank, substantially as set forth.

4:. In an envelop-machine, gummer-supper-ting devices comprising a vertical gummer-supporting spindle, and a bar fixed to said spindle and extending horizontally over the blank-table of the machine, combined with a gummer secured on one end of said bar, a lever pivotally attached to said bar for vertical vibratory movements, a second gum mer secured on the free end of said vibratory lever, a spring controlling the pressure of said second gummer against an envelop-blank, a pivoted latch-lever engaging a part attached to said lever thereby retaining the gummer thereon temporarily in an upwardly-swung position, and a springinterconnected between said. latch-lever and a fixed part of the machine for actuating said latch-lever, substantially as set forth.

5. Devices for holding and permitting of the separation of the envelop-blanks one by one, comprising the guide-post f, having a socket in its upper end, and suitably supported on a fixed part of the machine, the socket being revolubly adjustable on said guide-post, co1n bined with the block f adapted to slide in said socket, and the sheet-separating pin f screwing through said block, substantially as set forth.

JAMES BALL.

lVitnesses:

II. A. CHAPIN, K. 1. CLEMoNs. 

